<span i18n:translate="string: a $${login} b $${pass} c $${logdate} d" phptal:debug="1">
  <i18n:block name="login"   tal:content="string:mylogin"/>
  <i18n:block name="pass"  title="secondtest"  tal:content="string:mypass"/>
  <tal:block i18n:name="logdate" content="string:2004-08-02"/>
</span>
